class People(object):
    def __init__(self, name, age):
        self.name = name
        self.age = age
        self.jump()

    def walk(self):
        print("My name is {},I'm walking now.", self.name)

    def jump(self):
        print("My name is {},I'm jumping now.", self.name)


jack = People("Jack", 19)
print(jack.name)
print(jack.age)
